Washington, D.C. has the nation’s worst “family belonging” rating, with just 17 percent of 15- to 17-year-olds living with their married biological mother and father, according to an annual study on the on the impact of out-of-wedlock births and divorce on American families.

Washington’s dismal rating is far below the national average of 46 percent, dragged down the finding that just 9 percent of blacks in the age group live with their biological parents and 18 percent of Hispanics living in a traditional married home.

In their “Fourth Annual Index of Family Belonging and Rejection,” the Family Research Council's Marriage and Religion Institute focused on homes of married biological parents. Families in the Northeast are the most intact in the country while those in the South are the least intact.

Utah has the highest “belonging and rejection” index, with 57 percent living in traditional homes. Regionally, the northeast was best at 50 percent, and among races, Asians topped all with 65 percent, with blacks the lowest at 17 percent.

“The implications of half of America’s Children experiencing family rejection are grave,” said the report, provided in advance to Secrets and based on data fro the 2008-2011 Census Bureau’s American Community Index.

“Rejection leaves children without married parents committed to one another and to their children,” wrote the authors, Patrick F. Fagan and Nicholas Zill.

The study will be released Wednesday at noon in a live webcast event.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com.